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KS · South Korea · 1 designation

STS420J1FB

STS420J1FB is a grade designated under KS. Its recorded composition includes C 0.16–0.25%, Si ≤ 1%, Cr 12–14%, Mn ≤ 1% and Ni ≤ 0.6%. No cross-standard equivalents are recorded for this grade yet.

Chemical composition

7 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 84.1 %Cr — 13 %Si — 1 %Mn — 1 %Traces & impurities · 0.9 %

Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.

Element% by weight
0.16–0.25
≤ 1
≤ 1
≤ 0.04
≤ 0.03
12–14
≤ 0.6
CarbonSiliconManganesePhosphorusSulfurChromiumNickel
0.01 %0.1 %1 %10 %100 %

The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other.

ElementAs publishedsource text, verbatimMin% by weightMax% by weightBound
C0.16 - 0.250.1600.250Range
Simax 11.000Max
Pmax 0.040.040Max
Smax 0.030.030Max
Cr12 - 1412.00014.000Range
Mnmax 11.000Max
Nimax 0.60.600Max

The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred.

Predicted transformation temperatures

Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo.

Physical & mechanical properties

An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.

Looking for this grade under another name?

Search the catalogue by designation, material number or composition — every name on this page is itself a way in.